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公开(公告)号：US3300591A
公开(公告)日：1967-01-24
申请号：US32011763
申请日：1963-10-30
Applicant: COGNITRONICS CORP
Inventor： GUSHUE EDWARD J , GOLDMAN DAVID A
IPC: G11B7/003
CPC classification number: G11B7/003
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